Emergency-brake alarm



Mar. 6, A923.'

A D. sARTAKoFF EMERGENCY BRAKE ALARM Filed Mar. 5, 1921 MN Y f V4 ww www E sinh 7 N www, A .www W V 7 @m N A ,l 1| J Patented irEsD? smiles JACK n. SARTAKOFF, or FoRiaEsT HILLS, New YORK.

EMERGENCY-BRAKE ALARM.

Application filed lllarchV 3, 1.921. Serial No. ".1.4.'),44=8'.`V

To all whom it, may] concern.'

Be` it known that l, Jack D. SARTAKOFF, a citizen of Russia, residing at Forrest Hills, L. I., in the county ofy Queens andState of New York, have invented a certain new and useful Emergency-Brake. Alarm, of which the following is a specication. f

This invention is anl emergency brake alarm intended `for use on motor vehicles.

accomplish this result either through the use of a rfoot brake orthe emergency brake mechanism of the car i depending4 usually upon the speed of the car at the time the stop is desired, as well as the load carried by the car and the grade or hill on which the :stop i is to be made. At times the foot brake may be usedl successfully, while at other` times, I

the employment of lthe emergency brakev is essential. Moreover, in some instances a i driver will leave a car unbraked while at provide ,means whereby an alarm willbe,v

other times the car will be V'left with the emergency brake on.. ",VVhen a car/is thus f stopped orbraked, it maybe leftstanding `for more or less time,`while` the driver leaves 4the car and carries on his business elsewhere. In any event, the driver upon returning .to the car finds it the mostnatural procedure immediatelyupon becoming seated in the car to steponthe starter and start the car without stopping to `think whether the brakes are on or not. It thus often occurs that a car operator will start the car and` sounded in the event that a caroperator endeavors to are on.

The' invention broadly speaking contemplates connections between the carpropelling means and the emergency brake 'mechathe brakes are set so that any subsequent atnism, which connections are inoperative vso longA as the brakes are2 olf, but are automatically brought into operative condition when tempt to start the car while the brakes are on will result in the giving of an alarm. This alarm may be either of the audible or visual type, but is preferably the former.

start his car while the brakes` Features of the invention, other than those specified, will be apparent from the hereinafter detailed description and claim, when read in conjunction with the accompanying drawings.

The accompanying drawings illustrate one practical embodiment of the invention, but the construction shown therein, is to be understood asv illustrative, only, and not as delVhen a chauffeur or driver of a motor vev liicle draws up to a vcurb and stops,l hemay iining the limits of the invention.` y

Figure 1 is a fragmental side elevation, with parts in section illustrating alarm mechanism associated with the main drive shaft of a, motor vehicle` and the brake rod of such vehicle; and,

Figure 2 is a section on the line 2-2 of Figure 1. y y

lVhile the alarm mechanism of the `present invention `may be either mechanical or electrical and maygreatly differ indetails of construction and mode of operation, a `simple and practical form Vof the same is shown inthe accompanying drawings,y which form operates in an entirely mechanical mannen Referring tothe drawings, 1 designates they drive shaft of; a motor; vehicle,` which, in practice, may constitute the `main shaft leading from the transmission back to the dif-v ferential, and 2 denotes a brake rod of the vehicle. In practice, the brake rod` extends from the brake band forwardly and isipivotally secured as at 3 to the brake lever 4. Then the brakes .are off, the brake lever i isinthe forward full line position of Figure 1 and to. set,` the brakes, the handle of the lever 4 is grasped and pulled backto thedotted line position ofFigure 1.`l This operation of theV lever causes the rod 2 to be drawn forwardly and tightens the brake` band withy respect to the 4brake drum.` A quadrant 5, is ,i usually .associatedy with the brake lever. to assist in. maintaining the brakesset, and, in .'practice, thelever may be locked at any position ofitsV travel by engagement of adog 4J with the, quadrant, so,` that thgibrakes may be caused togripV with anydegreeof tightnessdesired by thedriver. All offthifsfmefclianisni ispld fand fwell known and'4A forms no partof thepresent' in'vention.` VIn associating`the present'in'vention with mechanism of the character described, a hanger 6 may be provided with a two part clamp 7 the parts of which may be clamped ytogether' by screws 8 in suoli manner as to firmly mount the hanger 6 upon the brake ico e rod 2 after the manner shown in Figures 1 and`2." The re-entrant portions of the sections of the clamp are preferably angular, as shown, so that they are adapted to engage rods lof different diameters. The hanger is pierced to receive two screws 10, which pass through the bracket and thread into a clamping block 11. The inner face of this block is cut out to permit ofthe passage therethrough of an arm 12. The arm 12is off set at one end and a bell 13 is riveted' in.v positioned -by arivet A14` 'Withf this arrangement, it will be apparent that the bell will be rigidly mounted on the brake rod 2,but that the position of thebell with reference to the rod may be regulated by adjusting the arm in the clamping block 11. To accomplish this, the screws 10 are loosened and the arm 12 slid into desired adjustment, after which the screws are again tightened to bind the parts firmly imposition. The bell, mounted as described, is supported on thebrake rod, so that when the brake lever is shifted the bellwill be moved longitudinally of the car and, in this manner, is adapted tovbe brought into and out of cooperativerelation with bell actuating means mounted oni the main shaft 1.

may conveniently consist in a bell striker 14` This actuating means carried by' the main shaft andV operated thereby. y

The striker is preferably inthe-form of `a metallic tube 15 having a rubber bush` ing 16 formed by slipping a length of rubber `tubing into the metallic tube. A pin 17` passes loosely through the striker and is securedV at its opposite ends tothe arms of a yoke `18 which straddles the striker as clearly shown in Figure 1. A clamp 19 of substantially the same character as the 'clamp 7, embraces the main shaft 1 and is firmly held in. place by screws or bolts 20, one of which passes through the stem of the yoke 18 and serves to securelyy mount the striker on the main shaft. l

In'practice, the clamps 7 and 19 are mounted in such relative positions on brake rod and main shafts, respectively, that when l the brakes are ofi", the main. shaft will merely swing 'the striker around without bringing it into ycontactwith the bell. The j relation of the parts will then be `as shown' in full lines in Figure 1. ,Theparts are, however, so assembled that when the brake lever is pulled back'` to set the brakes, the

resulting .forward movement of the brake rod will carry the bell into the path ofop- Y. eration of the" striker, so that .if .the main but Yalso renders the ynormal operations of the striker noiseless.

When the present invention, as described, is installed on a car, the setting of the brakes will "automatically move the bell into a position to set the alarm and when the driver leaves the car with the brakes set, the `alarm will be left in a condition to be automatically operated as soon as the car is subsequently started. If the driver attempts to start the car without releasing the brakes, the alarm will immediately be brought into operation and he will be reminded torelease his brakes.

I ain aware that the present invention may be carried out by entirely different mechanism than that described. In fact, any movable part of the vehicle operating 'mechanism may be utilized to give the alarm` and any part of the brake mechanism may be employed to condition the alarm for operation either through mechanical or electrical means.` If electrical means is employed, it is entirelyl feasible to .have the brakel mechanism operate to close a circuit to the automobile horn. For these reasons,

specific structure shown, but is to be', understood as broadly novel as is commensurate with the appended claim.

Having thus `fully described the invention, what I claim as new and desire to secure by Letters Patent is:

An emergency brake alarm attachment for motor .vehicles embodying -a clamp adapted to be rigidly secured to the drive Y shaft of a vehicle, a clapper carried by said clamp, a bracket, a bell supportedfon said bracket, and a clamp. associated withthe bracket for rigidly mounting the bracket on the hand brakerod ofthe vehicle in a position wherein the setting of the vehicle brake will automatically move the bell into the path of'travel of the clapper.

In testimony whereof, I have signed name Vto this specification. v

JACK D. SARTAKOFF. 

